Partial ORF1ab Gene Target Failure with Omicron BA.2.12.1

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Abstract

Mutations in the genome of SARS-CoV-2 can affect the performance of molecular diagnostic assays. In some cases, such as S-gene target failure, the impact can serve as a unique indicator of a particular SARS-CoV-2 variant and provide a method for rapid detection.

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  1. SciScore for 10.1101/2022.04.25.22274187: (What is this?)

    Please note, not all rigor criteria are appropriate for all manuscripts.

    Table 1: Rigor

    Ethicsnot detected.
    Sex as a biological variablenot detected.
    Randomizationnot detected.
    Blindingnot detected.
    Power Analysisnot detected.

    Table 2: Resources

    Software and Algorithms
    SentencesResources
    Samples sent for SARS-CoV-2 WGS may have been tested on a variety of other FDA EUA-approved SARS-CoV-2 diagnostic platforms, and not a cobas® SARS-CoV-2 assay, depending on workflows and testing protocols of the originating laboratory.
    SARS-CoV-2
    suggested: (Active Motif Cat# 91351, RRID:AB_2847848)
    WGS
    suggested: None
    Sequence reads were mapped to reference genome Wuhan-Hu-1 (NC_045512.2) using BWA (version 0.7.15), variant calling was performed with both Freebayes (version 1.3.4) and LoFreq (version 2.1.5).
    BWA
    suggested: (BWA, RRID:SCR_010910)
    Freebayes
    suggested: (FreeBayes, RRID:SCR_010761)
    LoFreq
    suggested: (LoFreq, RRID:SCR_013054)
    Genomic data from CUIMC is routinely uploaded to GISAID and to GenBank (under NCBI BioProject PRJNA751551).
    BioProject
    suggested: None
    Data Analysis: All charts and analyses were generated and performed with GraphPad Prism v8.2.1.
    GraphPad Prism
    suggested: (GraphPad Prism, RRID:SCR_002798)

    Results from OddPub: Thank you for sharing your code and data.


    Results from LimitationRecognizer: We detected the following sentences addressing limitations in the study:
    This study has some limitations. Not all SARS-CoV-2 tests were performed on the cobas® SARS-CoV-2 assays as multiple NAAT platforms are used at each participating site, and operational workflow may have unintentionally introduced biases (e.g., directing samples from certain patient populations or need for rapid result to particular platforms) to the study set. All analyses were performed on a per-sample and not a per-subject basis, and a single subject’s samples could have been included multiple times within the data set. However, the impact of this possibility is diminished by the multi-center nature of this study and large data. While pOGTF is currently specific to BA.2.12.1, the specificity, sensitivity, and predictive values may change over time as SARS-CoV-2 continues to evolve and the lineages prevalent in the population changes. Although pOGTF can be a rapid and useful tool for monitoring BA.2.12.1, WGS remains important in confirming the lineage, assessing for additional mutations, and detecting new variants that decrease the specificity of the association of pOGTF with BA.2.12.1.

    Results from TrialIdentifier: No clinical trial numbers were referenced.


    Results from Barzooka: We did not find any issues relating to the usage of bar graphs.


    Results from JetFighter: We did not find any issues relating to colormaps.


    Results from rtransparent:
    • Thank you for including a conflict of interest statement. Authors are encouraged to include this statement when submitting to a journal.
    • Thank you for including a funding statement. Authors are encouraged to include this statement when submitting to a journal.
    • No protocol registration statement was detected.

    Results from scite Reference Check: We found no unreliable references.


    About SciScore

    SciScore is an automated tool that is designed to assist expert reviewers by finding and presenting formulaic information scattered throughout a paper in a standard, easy to digest format. SciScore checks for the presence and correctness of RRIDs (research resource identifiers), and for rigor criteria such as sex and investigator blinding. For details on the theoretical underpinning of rigor criteria and the tools shown here, including references cited, please follow this link.